Contrast ratio of AOC 2230Fa

Black
Contrast ratio	738:1 (edge: 1190:1)
Monitor model	AOC 2230Fa
Submitted	01 Feb 2009 08:55 CET, by 67.170..
Camera model	SAMSUNG TECHWIN CO. LTD. Samsung S85
Processing remarks
Screen photo	[open image]
Luminance	0.56 cd/m2
Luminance spread	0.11 cd/m2 (2 standard deviations)
Exposure value	–2.67 stops (aim for –2 to –3)
Exposure spread	0.27 stops
Area used for calculation	0.549 x 0.549
Camera settings	Exposure time: 4 ISO: 50 F-number: 2.9 Focal length: 38 mm (35 mm equivalent) Exposure compensation: 0
White
Screen photo	[open image]
Luminance	417 cd/m2
Luminance spread	44 cd/m2 (2 standard deviations)
Exposure value	–2.11 stops (aim for –2 to –3)
Exposure spread	0.15 stops
Area used for calculation	0.549 x 0.549
Camera settings	Exposure time: 1/125 ISO: 50 F-number: 2.9 Focal length: 38 mm (35 mm equivalent) Exposure compensation: 0
Black at screen edge
Screen photo	[open image]
Luminance	0.35 cd/m2
Luminance spread	0.08 cd/m2 (2 standard deviations)
Exposure value	–3.36 stops (aim for –2 to –3)
Exposure spread	0.34 stops
Area used for calculation	0.549 x 0.549
Camera settings	Exposure time: 4 ISO: 50 F-number: 2.9 Focal length: 38 mm (35 mm equivalent) Exposure compensation: 0

The luminance values in cd/m2 are not very reliable, since camera sensitivities can easily differ up to 50% from their nominal value. Typically, the real luminance is 30% lower than this number. The area used for calculation is chosen such that it corresponds to a viewing angle of ±14° horizontally and ±10.5° vertically, which is equivalent to viewing the screen from a distance of about 1.5 times the diagonal size.

Unfortunately, there is a lot of variation in how cameras use EXIF settings. If photos from your camera your produce unusable results, try coming back in a few days. I review submitted pictures regularly and try to fix problems.